Stop 01 · Lot
Start with debt ratio for the permanent mortgage, then look at interest-only payments during construction and cash if the lot is not already owned.
On the path · Lot
Monthly income × DTI, minus other debts and housing expenses, converted to a loan amount at the estimated permanent rate.
Construction-to-perm usually charges interest only on funds already drawn — not the full loan — until occupancy.
This month’s interest
$1,688
$300,000 outstanding × 6.75% ÷ 12. Estimate only.
Many one-close programs count owned-lot equity toward the down payment. If land is still being purchased, plan on cash equal to the required down payment of total cost.
Estimated cash in
$0
Lot equity is applied first. Cash is only the gap above the required down payment.
Percent-of-hard-cost range by scope and complexity.
Course-of-construction coverage for the build period.